package day20171009;

public class Zijie {
    public static void main(String[] args) {
        //整数类型
        byte b = 100;             //占1个字节，-128到127
        short s = 2000;            //占2个字节,最高就是四位
        int i = 300;              //占4个字节
        long x = 88888888888888L;     //占8个字节
        System.out.println(b);
        System.out.println(s);
        System.out.println(i);
        System.out.println(x);   //都是有上限的
    }
}

